Marcell Dareus will likely wait another week before he makes his season debut. The Bills defensive tackle is doubtful for Sunday's game due to a hamstring injury suffered last week in practice. Head coach Rex Ryan wasn't optimistic, but didn't officially rule him out of Sunday's game against the 49ers either.
"We'll see what happens," said Ryan. "Never say never. If he's feeling great, I'm not one of these coaches where you have practice. If you're a great player then I'll throw you in there."
Dareus did not participate in practice at all this week. He was working on the stationary bike this week and did rehab work with the team's strength and conditioning staff. Ryan said they'll see how he feels at the team's Saturday practice and go from there.
It can be tough to assess progress with hamstring injuries knowing they don't usually resurface as a problem until a player tries to explode or burst out of a stance or accelerate quickly.
"Walking around I feel pretty good, but when I try to get out there a little bit and try to run and get moving I'm sore with some stiffness," said Dareus earlier this week. "If you get out there a little too soon it can re-occur. So you want to make sure it's treated properly and that it's ready to go before they let you go."
Buffalo's defense has fared relatively well without Dareus in the lineup. They rank second in red zone defense, fifth in points allowed, sixth in yards per rush allowed and 11th in third down defense this season.
Questionable players for Sunday's game are as follows.
OT Cordy Glenn - ankle
CB Corey White - shoulder
DT Corbin Bryant - ankle
P Colton Schmidt - quad
OL Patrick Lewis - knee
LB Zach Brown - ankle
S Aaron Williams - ankle
TE Charles Clay - knee
OT Cyrus Kouandjio - ankle